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Finding the Fourth Proportional to 330,065.55, 495,094.41 and 105,423.03

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Solution

The fourth proportional to 330,065.55, 495,094.41 and 105,423.03 is: 158,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,065.55 : 495,094.41 = 105,423.03 : x
  2. Step 2: Convert to fraction form
    330,065.55/495,094.41 = 105,423.03/x
  3. Step 3: Cross multiply
    330,065.55x = 495,094.41 × 105,423.03
  4. Step 4: Simplify right side
    330,065.55x = 52,194,352,838.26
  5. Step 5: Solve for x
    x = 52,194,352,838.26/330,065.55
  6. Step 6: Final answer
    x = 158,133.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.